*/
#include <ncurses.h>
-#include <stdio.h>
+
+#include <fcntl.h>
+#include <locale.h>
#include <signal.h>
+#include <stdio.h>
#include <string.h>
+#include <sys/ioctl.h>
#include <sys/time.h>
+#include <termios.h>
#include <time.h>
#include <madtty/madtty.h>
-static unsigned char getout = 0;
+static int getout = 0, sigwinch = 0;
static int screen_w, screen_h;
static WINDOW *term_win;
+static struct timeval const slice = { 0, 1000 * 1000 / 100 };
+
+void handler(int signo)
+{
+ switch (signo) {
+ case SIGCHLD:
+ getout = 1;
+ break;
+ case SIGWINCH:
+ sigwinch = 1;
+ break;
+ }
+}
+
+static struct timeval timeval_add(struct timeval a, struct timeval b)
+{
+ int usec = a.tv_usec + b.tv_usec;
+ a.tv_sec += b.tv_sec;
+ while (usec > 1000 * 1000) {
+ a.tv_sec += 1;
+ usec -= 1000 * 1000;
+ }
+ a.tv_usec = usec;
+ return a;
+}
-void sigchld(int signo __attribute__((unused)))
+static int is_expired(struct timeval now, struct timeval expiry)
{
- getout = 1;
+ return now.tv_sec > expiry.tv_sec
+ || (now.tv_sec == expiry.tv_sec && now.tv_usec > expiry.tv_usec);
}
int main(void)
{
- struct timeval next = { 0, 0 };
madtty_t *rt;
+ int dirty = 0, pty;
+ struct timeval next;
- signal(SIGCHLD, sigchld);
+ signal(SIGCHLD, handler);
+ signal(SIGWINCH, handler);
- madtty_initialize();
+ setlocale(LC_ALL, "");
+ initscr();
+ start_color();
+ noecho();
+ raw();
+ nodelay(stdscr, TRUE);
+ keypad(stdscr, TRUE);
+ curs_set(0);
+ ESCDELAY=50;
+ madtty_init_colors();
getmaxyx(stdscr, screen_h, screen_w);
/* create a window with a frame */
term_win = newwin(screen_h - 2, screen_w - 2, 1, 1);
- rt = madtty_create(screen_h - 2, screen_w - 2);
+ rt = madtty_create(screen_h - 2, screen_w -2);
{
const char *path = getenv("SHELL") ?: "/bin/sh";
const char *args[] = { path, "--login", NULL};
- madtty_forkpty(rt, path, args);
+ madtty_forkpty(rt, path, args, &pty);
}
/* keep reading keypresses from the user and passing them to the terminal;
* also, redraw the terminal to the window at each iteration */
+ gettimeofday(&next, NULL);
while (!getout) {
+ struct timeval tv = { 0, 1000 * 1000 / 100 };
fd_set rfds;
- struct timeval tv = { 0 , 1000 }, t;
int ch;
FD_ZERO(&rfds);
- FD_SET(rt->pty, &rfds);
+ FD_SET(0, &rfds);
+ FD_SET(pty, &rfds);
+
+ if (select(pty + 1, &rfds, NULL, NULL, &tv) > 0) {
+ if (FD_ISSET(pty, &rfds)) {
+ madtty_process(rt);
+ dirty = 1;
+ }
+ }
+
+ if (sigwinch) {
+ int fd, cols = -1, rows = -1;
+ struct winsize w;
- if (select(rt->pty + 1, &rfds, NULL, NULL, &tv) > 0) {
- if (madtty_process(rt))
- break;
+ if ((fd = open("/dev/tty", O_RDONLY)) != -1) {
+ if (ioctl(fd, TIOCGWINSZ, &w) != -1) {
+ rows = w.ws_row;
+ cols = w.ws_col;
+ }
+ close(fd);
+ }
+ if (rows <= 0) {
+ rows = atoi(getenv("LINES") ?: "24");
+ }
+ if (cols <= 0) {
+ cols = atoi(getenv("COLUMNS") ?: "80");
+ }
+
+ resizeterm(rows, cols);
+ madtty_resize(rt, rows - 2, cols - 2);
+ wresize(term_win, rows - 2, cols - 2);
+ sigwinch = 0;
+ erase();
}
while ((ch = getch()) != ERR) {
madtty_keypress(rt, ch); /* pass the keypress for handling */
+ dirty = 1;
}
- gettimeofday(&t, NULL);
- if (timercmp(&t, &next, >=)) {
+ gettimeofday(&tv, NULL);
+ if (dirty && is_expired(tv, next)) {
madtty_draw(rt, term_win, 0, 0);
wrefresh(term_win);
- gettimeofday(&next, NULL);
- next.tv_usec += 1000 * 1000 / 50;
- if (next.tv_usec > 1000 * 1000) {
- next.tv_usec -= 1000 * 1000;
- next.tv_sec++;
- }
+ dirty = 0;
+ next = timeval_add(tv, slice);
}
}